公开(公告)号：US12210881B2

公开(公告)日：2025-01-28

申请号：US17972332

申请日：2022-10-24

Applicant: Dell Products L.P.

Inventor： Ibrahim Sayyed ,  Adolfo S. Montero ,  Bassem Elazzami

IPC: G06F9/4401

Abstract: An embedded controller (EC) of an information handling system is configured to detect and respond to anomalous conditions in which a pre-boot or runtime error has occurred and EC-local storage resources are not sufficient to store EC telemetry data, by redirecting the EC telemetry data through an available communication channel, e.g., SBIOS MBOX packets or ACPI MMIO, to offload the data to EC-external storage such as an ESP partition or Cloud storage. In a pre-boot mode, SBIOS may invoke a UEFI storage driver to write out EC log data to EC-external storage, e.g., SSD/NVMe device or the Cloud. In a runtime mode, the EC may be flagged by an OS bugcheck handler, e.g., via eSPI MMIO path, to save the log data. In an OS-context mode, ACPI methods may notify a persistent driver, e.g., Common Platform Services (CPS) driver, to write out the log to the EC-external storage.

公开(公告)号：US11853593B2

公开(公告)日：2023-12-26

申请号：US17722817

申请日：2022-04-18

Applicant: Dell Products L.P.

Inventor： Bassem Elazzami ,  Adolfo Sandor Montero ,  Ibrahim Sayyed

IPC: G06F3/06

CPC classification number: G06F3/0655 ,  G06F3/0604 ,  G06F3/0679

Abstract: Methods and systems for managing communications is disclosed. A host device and a management controller may communicate via memory mapped communications using shared memory. To improve the security of the memory mapped communications, access requests for shared memory may be monitored. Access controls for the shared memory may be put in place to reduce the likelihood of data being made unavailable before it is processed. The access controls may be lifted when the data stored in shared memory has been read by to complete the memory mapped communications.